Copy save Bitmap Image Pictures Android example
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Copy file to another
Copy and compress file
File path = Environment.getExternalStoragePublicDirectory(
Environment.DIRECTORY_PICTURES);
File file = new File(path, "MyPicture.jpg");
// the Pictures directory exists?
path.mkdirs();
InputStream is = getResources().openRawResource(R.drawable.flower_blue);
OutputStream os = new FileOutputStream(file);
byte[] data = new byte[is.available()];
is.read(data);
os.write(data);
is.close();
os.close();
Copy and compress file
Bitmap bitmapOrg = BitmapFactory.decodeResource(getResources(),
R.drawable.flower_blue);
try {
FileOutputStream out = new FileOutputStream("new_bitmap.jpg");
bitmapOrg.compress(Bitmap.CompressFormat.JPEG, 90, out);
} catch (Exception e) {
e.printStackTrace();
Log.e("saveBitmap", e.getMessage());
}
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Move mouse cursor on error text and press Ctrl+1
Select Fix line endings and press Enter
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RectF, drawRoundRect(),

public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(new SampleView(this));
}
private static class SampleView extends View {
// CONSTRUCTOR
public SampleView(Context context) {
super(context);
setFocusable(true);
}
@Override
protected void onDraw(Canvas canvas) {
Paint paint = new Paint();
canvas.drawColor(Color.GREEN);
Bitmap b = Bitmap.createBitmap(200, 200, Bitmap.Config.ALPHA_8);
Canvas c = new Canvas(b);
RectF rectF = new RectF();
rectF.set(5,5,150,150);
c.drawRoundRect(rectF, 10, 10, paint);
paint.setColor(Color.RED);
canvas.drawBitmap(b, 10,10, paint);
}
}
}

android:autoLink="all"
<!-- text1 automatically linkifies things like URLs and phone numbers. -->
<TextView
android:id="@+id/text1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:autoLink="all"
android:text="@string/link_text_auto"
/>
android.content.ActivityNotFoundException: Unable to find explicit activity class {com.example.my_package/com.example.my_package.MainClass}; have you declared this activity in your AndroidManifest.xml?
Is MainClass.java in AndroidManifest as a activity ?
AndroidManifest.xml example
Is MainClass.java in AndroidManifest as a activity ?
AndroidManifest.xml example
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="//schemas.android.com/apk/res/android"
package="com.example.my_packag"
android:versionCode="1"
android:versionName="1.0">
<uses-sdk android:minSdkVersion="7" />
<application android:icon="@drawable/icon" android:label="@string/app_name">
<activity android:name=".MainClass"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
Issue:
ActivityThread: Failed to find provider
Try check this authority tags if they are all the same:
(com.yourdomen.yourproject.YourContentProviderClass replace your path to YourContentProviderClass)
res/xml/serchable.xml
Tag searchable
AndroidManifest.xml
Tag provider
ActivityThread: Failed to find provider
Try check this authority tags if they are all the same:
(com.yourdomen.yourproject.YourContentProviderClass replace your path to YourContentProviderClass)
res/xml/serchable.xml
Tag searchable
<searchable xmlns:android="//schemas.android.com/apk/res/android"
android:blahblah
......
android:searchSuggestAuthority="com.yourdomen.yourproject.YourContentProviderClass"
AndroidManifest.xml
Tag provider
<provider android:name=".YourContentProviderClass"
android:authorities="com.yourdomen.yourproject.YourContentProviderClass" />
Editace: 2011-11-17 21:42:23
Počet článků v kategorii: 396
Url:save-bitmap-image-android-example
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