Draw Path drawPath draw the trajectory of shot Android basic example
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Draw the trajectory of shot.
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);
}
private static void makePath(Path p) {
p.moveTo(10, 0);
p.cubicTo(100, -50, 200, 150, 300, 0);
}
@Override
protected void onDraw(Canvas canvas) {
canvas.drawColor(Color.CYAN);
Paint p = new Paint();
// smooths
p.setAntiAlias(true);
p.setColor(Color.RED);
p.setStyle(Paint.Style.STROKE);
p.setStrokeWidth(5);
// opacity
//p.setAlpha(0x80);
p.setColor(Color.BLACK);
Path mPath = new Path();
makePath(mPath);
canvas.drawPath(mPath, p); //(rectF, 90, 45, true, p);
}
}
}
397LW NO topic_id
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Další témata ....(Topics)
putString(), putBoolean(), putInt() etc.¨
How we can start an activity programmatically.
How we can start an activity programmatically.
// MainActivity.java
// myButton.setOnClickListener
Intent binary = new Intent(getApplicationContext(),Calculate.class);
Bundle b = new Bundle();
b.putString("prvni_label", "Decimal");
b.putString("druhy_label", "Binary");
b.putString("mode", "binary_to_decimal");
binary.putExtras(b);
startActivityForResult(binary, 0);
// in Calculate.java onCreate
TextView mTextView1 = (TextView)findViewById(R.id.textView1);
TextView mTextView2 = (TextView)findViewById(R.id.textView2);
Bundle _bundle = getIntent().getExtras();
mTextView1.setText(_bundle.getString("prvni_label"));
mTextView2.setText(_bundle.getString("druhy_label"));
//.................. HOW OPEN START NEW ACTIVITY WITHOUT A PARAMETER .........................
startActivity(new Intent(ThisActivity.this, NewActivity.class));
1.) Try reopen the Emulaor and restart Eclipse.
OR
2.) Try to delete AVD from Eclipse menu Window - AVD manager.
OR
3.) Insert into manifest.xml this source code.
OR
2.) Try to delete AVD from Eclipse menu Window - AVD manager.
OR
3.) Insert into manifest.xml this source code.
<manifest xmlns:android="//schemas.android.com/apk/res/android"
package="com.myweb.mypackage"
android:installLocation="preferExternal"
Toast in Android application is equivalent of Alert in JavaScript or MessageBox in WinApi.
// Toast android.widget.Toast.makeText(Context context, CharSequence text, int duration)
// public static Toast makeText (Context context, CharSequence text, int duration)
Toast.makeText(getApplicationContext(), "Hello world!",
Toast.LENGTH_SHORT).show();
MainActivity.java
res/layout/main.xml
res/drawable/my_progress.xml
ProgressBar mProgressBarScore;
// onCreate
mProgressBarScore = (ProgressBar)findViewById(R.id.progressBarScore);
Resources res = getResources();
mProgressBarScore.setProgressDrawable(res.getDrawable( R.drawable.my_progress));
res/layout/main.xml
<ProgressBar
android:id="@+id/progressBarScore"
style="?android:attr/progressBarStyleHorizontal"
android:layout_width="fill_parent"
android:layout_height="wrap_content" android:max="100"/>
res/drawable/my_progress.xml
-
android:startColor="#FF001A"
android:centerColor="#ff5a5d5a"
android:centerY="0.75"
android:endColor="#FF001A"
android:angle="270"
/>
-
android:startColor="#80ffd300"
android:centerColor="#80ffb600"
android:centerY="0.75"
android:endColor="#a0ffcb00"
android:angle="270"
/>
android:id="@android:id/progress"
>
android:radius="10dip" />
android:startColor="#00ff00"
android:centerColor="#80ffb600"
android:centerY="0.75"
android:endColor="#339900"
android:angle="270" />
If I trying
android-sdk_r22.6.2-windows.zip
adt-bundle-windows-x86_64-20140321.zip
and open xml layout graphic editor and xml layout file
memory continues to grow to crashes Eclipse
https://developer.android.com/sdk/index.html
I have to install old version adt-bundle-windows-x86-20131030.zip
what working fine.
I had to delete .metadata folder in workspace if I want open old version ADT
android-sdk_r22.6.2-windows.zip
adt-bundle-windows-x86_64-20140321.zip
and open xml layout graphic editor and xml layout file
memory continues to grow to crashes Eclipse
https://developer.android.com/sdk/index.html
I have to install old version adt-bundle-windows-x86-20131030.zip
what working fine.
I had to delete .metadata folder in workspace if I want open old version ADT
Editace: 2013-12-09 13:10:58
Počet článků v kategorii: 397
Url:draw-path-drawpath-android-basic-example
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