好的，亲爱的，我把裁剪图像的整个代码放在 Android 中。这是全局变量。
//This For Image Crop
/**
* Uri for set image crop option .
*/
private Uri mImageCaptureUri;
/**
* int for set key and get key from result activity .
*/
public final int CROP_FROM_CAMERA = 0;
/**
* Bitmap for apply Crop Operation Result.
*/
private Bitmap _tempOpration;
//This is Crop Method.
/**
* Method for apply Crop .
* @param filePath - String path of file .
*/
private void doCrop(String filePath){
try{
//New Flow
mImageCaptureUri = Uri.fromFile(new File(filePath));
final ArrayList<CropOption> cropOptions = new ArrayList<CropOption>();
Intent intent = new Intent("com.android.camera.action.CROP");
intent.setType("image/*");
List<ResolveInfo> list = getPackageManager().queryIntentActivities( intent, 0 );
int size = list.size();
if (size == 0)
{
Toast.makeText(this, "Can not find image crop app", Toast.LENGTH_SHORT).show();
return;
}
else
{
intent.setData(mImageCaptureUri);
intent.putExtra("outputX", 300);
intent.putExtra("outputY", 300);
intent.putExtra("aspectX", 1);
intent.putExtra("aspectY", 1);
intent.putExtra("scale", true);
intent.putExtra("return-data", true);
if (size == 1)
{
Intent i = new Intent(intent);
ResolveInfo res = list.get(0);
i.setComponent( new ComponentName(res.activityInfo.packageName, res.activityInfo.name));
startActivityForResult(i, CROP_FROM_CAMERA);
}
else
{
for (ResolveInfo res : list)
{
final CropOption co = new CropOption();
co.title = getPackageManager().getApplicationLabel(res.activityInfo.applicationInfo);
co.icon = getPackageManager().getApplicationIcon(res.activityInfo.applicationInfo);
co.appIntent= new Intent(intent);
co.appIntent.setComponent( new ComponentName(res.activityInfo.packageName, res.activityInfo.name));
cropOptions.add(co);
}
CropOptionAdapter adapter = new CropOptionAdapter(getApplicationContext(), cropOptions);
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Choose Crop App");
builder.setAdapter( adapter, new DialogInterface.OnClickListener()
{
public void onClick( DialogInterface dialog, int item )
{
startActivityForResult( cropOptions.get(item).appIntent, CROP_FROM_CAMERA);
}
});
builder.setOnCancelListener( new DialogInterface.OnCancelListener()
{
public void onCancel( DialogInterface dialog )
{
if (mImageCaptureUri != null )
{
getContentResolver().delete(mImageCaptureUri, null, null );
mImageCaptureUri = null;
}
}
} );
AlertDialog alert = builder.create();
alert.show();
}
}
}
catch (Exception ex)
{
genHelper.showErrorLog("Error in Crop Function-->"+ex.toString());
}
}
这是另一个用于在应用程序中查找作物活动意图的类。
裁剪选项类。
public class CropOption
{
public CharSequence title;
public Drawable icon;
public Intent appIntent;
}
这是用于显示列表。
裁剪选项适配器
public class CropOptionAdapter extends ArrayAdapter<CropOption>
{
private ArrayList<CropOption> mOptions;
private LayoutInflater mInflater;
public CropOptionAdapter(Context context, ArrayList<CropOption> options)
{
super(context, R.layout.crop_selector, options);
mOptions = options;
mInflater = LayoutInflater.from(context);
}
@Override
public View getView(int position, View convertView, ViewGroup group)
{
if (convertView == null)
convertView = mInflater.inflate(R.layout.crop_selector, null);
CropOption item = mOptions.get(position);
if (item != null) {
((ImageView) convertView.findViewById(R.id.iv_icon)).setImageDrawable(item.icon);
((TextView) convertView.findViewById(R.id.tv_name)).setText(item.title);
return convertView;
}
return null;
}
}
CropOptionAdapter 的布局文件
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="10dp"
android:gravity="center_vertical">
<ImageView
android:id="@+id/iv_icon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
<TextView
android:id="@+id/tv_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=""/>
</LinearLayout>
这是 resultActivity.witch 给出的裁剪图像。
/**
* @see android.app.Activity#onActivityResult(int, int, android.content.Intent)
*/
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
super.onActivityResult(requestCode, resultCode, data);
if (resultCode != RESULT_OK) return;
switch (requestCode)
{
case CROP_FROM_CAMERA:
if (data == null)
{
genHelper.showToast("No Crop Activity in This");
return;
}
final Bundle extras = data.getExtras();
if (extras != null)
{
try
{
_tempOpration=extras.getParcelable("data");
imageLayout.setImageBitmap(_tempOpration);
_tempOpration=null;
}
catch (Exception e)
{
e.printStackTrace();
}
}
break;
}
}
//做这个类型它在我的实时应用程序上工作。
genHelper.showToast("这里没有作物活动");
是我的通用类来帮助显示 toast 消息和错误日志。
最好的运气。