LaizyBoy
6cf5ac2034
- 创建CropBackgroundUtils工具类，实现与BackgroundUtils类似的背景管理功能 - 在封面剪裁窗口(CropActivity)添加"修改剪裁背景颜色"按钮 - 按钮点击后弹出Toast提示信息 - 使用独立的偏好设置存储(crop_background_prefs)
314 lines
13 KiB
Java
314 lines
13 KiB
Java
package cc.winboll.studio.gallery;
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import android.graphics.Bitmap;
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import android.graphics.BitmapFactory;
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import android.graphics.RectF;
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import android.net.Uri;
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import android.os.Bundle;
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import android.content.DialogInterface;
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import android.content.Intent;
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import android.graphics.Bitmap;
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import android.graphics.BitmapFactory;
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import android.graphics.RectF;
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import android.net.Uri;
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import android.os.Bundle;
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import android.provider.MediaStore;
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import android.view.View;
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import android.widget.ImageView;
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import android.widget.ScrollView;
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import android.widget.SeekBar;
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import android.widget.TextView;
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import android.widget.LinearLayout;
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import android.widget.Toast;
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import androidx.appcompat.app.AlertDialog;
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import androidx.appcompat.app.AppCompatActivity;
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import cc.winboll.studio.libappbase.LogUtils;
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import java.io.File;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.util.Random;
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public class CropActivity extends AppCompatActivity {
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public static final String TAG = "CropActivity";
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public static final String EXTRA_IMAGE_URI = "image_uri";
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public static final String EXTRA_IMAGE_PATH = "image_path";
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public static final String EXTRA_ALBUM_PATH = "album_path";
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public static final String EXTRA_CROP_WIDTH = "crop_width";
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public static final String EXTRA_CROP_HEIGHT = "crop_height";
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private CropCanvasView cropCanvasView;
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private ZoomContainerView zoomContainer;
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private Bitmap originalBitmap;
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private String imagePath;
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private String albumPath;
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private int cropWidth = 240;
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private int cropHeight = 120;
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private float cropRatio = 2.0f;
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private Preferences prefs;
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_crop);
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imagePath = getIntent().getStringExtra(EXTRA_IMAGE_PATH);
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albumPath = getIntent().getStringExtra(EXTRA_ALBUM_PATH);
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cropWidth = getIntent().getIntExtra(EXTRA_CROP_WIDTH, 240);
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cropHeight = getIntent().getIntExtra(EXTRA_CROP_HEIGHT, 120);
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prefs = new Preferences(this);
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int bgType = prefs.getBgType();
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if (cropWidth > 0 && cropHeight > 0) {
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cropRatio = (float) cropWidth / cropHeight;
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} else {
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cropRatio = prefs.getCoverRatio();
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cropWidth = (int) (120 * cropRatio);
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cropHeight = 120;
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}
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findViewById(R.id.btn_close).setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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finish();
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}
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});
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findViewById(R.id.btn_done).setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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saveCroppedCover();
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}
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});
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findViewById(R.id.btn_info).setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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showCropInfoDialog();
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}
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});
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findViewById(R.id.btn_change_bg).setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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Toast.makeText(CropActivity.this, "修改剪裁背景颜色", Toast.LENGTH_SHORT).show();
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}
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});
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zoomContainer = findViewById(R.id.zoom_container);
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SeekBar seekBarZoom = findViewById(R.id.seekbar_zoom);
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seekBarZoom.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
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@Override
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public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
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if (zoomContainer != null && fromUser) {
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float scale = 0.1f + (progress / 100f) * 4.9f;
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zoomContainer.setScaleFactor(scale);
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}
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}
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@Override
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public void onStartTrackingTouch(SeekBar seekBar) {}
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@Override
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public void onStopTrackingTouch(SeekBar seekBar) {}
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});
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cropCanvasView = findViewById(R.id.crop_canvas_view);
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cropCanvasView.setBackgroundType(bgType);
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cropCanvasView.setOnBackgroundColorChangedListener(new CropCanvasView.OnBackgroundColorChangedListener() {
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@Override
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public void onBackgroundColorChanged(int color) {
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}
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});
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loadImage();
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}
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private void loadImage() {
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try {
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if (imagePath != null && new File(imagePath).exists()) {
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originalBitmap = BitmapFactory.decodeFile(imagePath);
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} else {
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Uri imageUri = getIntent().getParcelableExtra(EXTRA_IMAGE_URI);
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if (imageUri != null) {
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originalBitmap = MediaStore.Images.Media.getBitmap(getContentResolver(), imageUri);
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}
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}
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if (originalBitmap != null) {
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cropCanvasView.setImageBitmap(originalBitmap);
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cropCanvasView.post(new Runnable() {
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@Override
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public void run() {
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initCrop();
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}
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});
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} else {
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Toast.makeText(this, "Failed to load image", Toast.LENGTH_SHORT).show();
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finish();
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}
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} catch (Exception e) {
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LogUtils.e(TAG, "loadImage error: " + e.getMessage());
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Toast.makeText(this, "Failed to load image", Toast.LENGTH_SHORT).show();
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finish();
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}
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}
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private void initCrop() {
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cropCanvasView.initCanvas(originalBitmap.getWidth(), originalBitmap.getHeight(), cropRatio);
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int viewW = cropCanvasView.getWidth();
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int viewH = cropCanvasView.getHeight();
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if (viewW > 0 && viewH > 0) {
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cropCanvasView.scaleToView(viewW, viewH);
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}
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}
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private void saveCroppedCover() {
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if (originalBitmap == null || originalBitmap.isRecycled()) {
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Toast.makeText(this, "Failed to get image", Toast.LENGTH_SHORT).show();
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return;
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}
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try {
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Bitmap canvasBitmap = cropCanvasView.getCanvasBitmap();
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if (canvasBitmap == null || canvasBitmap.isRecycled()) {
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Toast.makeText(this, "Failed to get canvas bitmap", Toast.LENGTH_SHORT).show();
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return;
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}
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RectF cropRect = cropCanvasView.getCropRect();
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int bmpX = (int) cropRect.left;
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int bmpY = (int) cropRect.top;
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int bmpW = (int) cropRect.width();
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int bmpH = (int) cropRect.height();
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bmpX = Math.max(0, Math.min(bmpX, canvasBitmap.getWidth() - 1));
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bmpY = Math.max(0, Math.min(bmpY, canvasBitmap.getHeight() - 1));
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bmpW = Math.max(1, Math.min(bmpW, canvasBitmap.getWidth() - bmpX));
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bmpH = Math.max(1, Math.min(bmpH, canvasBitmap.getHeight() - bmpY));
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LogUtils.d(TAG, "saveCroppedCover: cropRect=" + cropRect);
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LogUtils.d(TAG, "saveCroppedCover: crop=(" + bmpX + "," + bmpY + "," + bmpW + "," + bmpH + ")");
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LogUtils.d(TAG, "saveCroppedCover: canvas size=" + canvasBitmap.getWidth() + "x" + canvasBitmap.getHeight());
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Bitmap cropped = Bitmap.createBitmap(canvasBitmap, bmpX, bmpY, bmpW, bmpH);
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canvasBitmap.recycle();
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LogUtils.d(TAG, "saveCroppedCover: cropped size=" + cropped.getWidth() + "x" + cropped.getHeight());
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File coverDir = new File(getFilesDir(), "covers");
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if (!coverDir.exists()) {
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coverDir.mkdirs();
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}
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File coverFile = new File(coverDir, "cover_" + System.currentTimeMillis() + ".png");
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LogUtils.d(TAG, "saveCroppedCover: cover file=" + coverFile.getAbsolutePath());
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FileOutputStream fos = new FileOutputStream(coverFile);
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cropped.compress(Bitmap.CompressFormat.PNG, 100, fos);
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fos.close();
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LogUtils.d(TAG, "saveCroppedCover: file exists=" + coverFile.exists() + ", length=" + coverFile.length());
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cropped.recycle();
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AlbumCoverDbHelper coverDbHelper = AlbumCoverDbHelper.getInstance(this);
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coverDbHelper.setCoverWithCrop(albumPath, imagePath, coverFile.getAbsolutePath());
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LogUtils.d(TAG, "saveCroppedCover: cover saved to db, albumPath=" + albumPath);
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Intent broadcastIntent = new Intent(Preferences.ACTION_COVER_UPDATED);
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sendBroadcast(broadcastIntent);
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Toast.makeText(this, "封面已保存", Toast.LENGTH_SHORT).show();
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setResult(RESULT_OK);
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finish();
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} catch (Exception e) {
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LogUtils.e(TAG, "saveCroppedCover error: " + e.getMessage());
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Toast.makeText(this, "Failed to save cover", Toast.LENGTH_SHORT).show();
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}
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}
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private void showCropInfoDialog() {
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StringBuilder info = new StringBuilder();
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info.append("=== 画布信息 ===\n");
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info.append("画布宽度: ").append(cropCanvasView.getCanvasWidth()).append("px\n");
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info.append("画布高度: ").append(cropCanvasView.getCanvasHeight()).append("px\n");
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info.append("\n=== 背景类型 ===\n");
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String[] bgNames = {"灰白相间", "全白", "全黑"};
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info.append("背景: ").append(bgNames[cropCanvasView.getBackgroundType()]).append("\n");
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int bgColor = cropCanvasView.getBackgroundColor();
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info.append("背景颜色: #").append(String.format("%06X", bgColor & 0xFFFFFF)).append("\n");
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info.append("拾取坐标: ").append(cropCanvasView.getLastPickImageX()).append(",")
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.append(cropCanvasView.getLastPickImageY()).append("\n");
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info.append("\n=== 裁剪结果 ===\n");
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RectF cropRect = cropCanvasView.getCropRect();
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if (cropRect != null) {
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info.append("裁剪区域: ").append((int)cropRect.left).append(",")
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.append((int)cropRect.top).append(",")
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.append((int)cropRect.right).append(",")
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.append((int)cropRect.bottom).append("\n");
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info.append("裁剪宽度: ").append((int)cropRect.width()).append("px\n");
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info.append("裁剪高度: ").append((int)cropRect.height()).append("px\n");
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}
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Bitmap canvasBitmap = cropCanvasView.getCanvasBitmap();
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final Bitmap[] previewHolder = new Bitmap[1];
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if (canvasBitmap != null && !canvasBitmap.isRecycled() && cropRect != null) {
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int bmpX = Math.max(0, (int) cropRect.left);
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int bmpY = Math.max(0, (int) cropRect.top);
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int bmpW = Math.min((int) cropRect.width(), canvasBitmap.getWidth() - bmpX);
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int bmpH = Math.min((int) cropRect.height(), canvasBitmap.getHeight() - bmpY);
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if (bmpW > 0 && bmpH > 0) {
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previewHolder[0] = Bitmap.createBitmap(canvasBitmap, bmpX, bmpY, bmpW, bmpH);
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}
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}
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final Bitmap previewBitmap = previewHolder[0];
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View dialogView = getLayoutInflater().inflate(R.layout.dialog_crop_info, null);
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TextView infoText = dialogView.findViewById(R.id.info_text);
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ImageView previewImage = dialogView.findViewById(R.id.preview_image);
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final LinearLayout previewImageContainer = dialogView.findViewById(R.id.preview_image_container);
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infoText.setText(info.toString());
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if (previewBitmap != null) {
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previewImage.setImageBitmap(previewBitmap);
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}
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previewImage.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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int randomColor = 0xFF000000 | new Random().nextInt(0x00FFFFFF);
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previewImageContainer.setBackgroundColor(randomColor);
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}
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});
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AlertDialog dialog = new AlertDialog.Builder(this)
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.setTitle("裁剪信息")
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.setView(dialogView)
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.setPositiveButton("确定", null)
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.create();
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dialog.setOnDismissListener(new DialogInterface.OnDismissListener() {
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@Override
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public void onDismiss(DialogInterface dialog) {
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if (previewBitmap != null && !previewBitmap.isRecycled()) {
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previewBitmap.recycle();
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}
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}
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});
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dialog.show();
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}
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@Override
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protected void onDestroy() {
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super.onDestroy();
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if (originalBitmap != null) {
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originalBitmap.recycle();
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originalBitmap = null;
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}
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}
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}
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