I've written a camera application, but when I want to show the camera's live preview(before taking the picture), the preview is rotated 90 degrees!
Im pretty much a newbie at this so i could use some help to know why does my app keep crashing ?
My app keeps crashing when I start the Camera class.
package com.example.tutorial;
import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
public class Camera extends Activity implements View.OnClickListener {
Button photoTaken, setWall;
Image
I am trying to play a video from the gallery. On button click it should start playing video in the videoView. But i get exception that spcified child already has parent.
I have two activities:
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void click(View view) {
Intent intent= new Intent(this, TranslucentActivity.class);
startActivity(intent);
}
}
public class TranslucentActivity extends Activity
I want to lock the screen of the app on button click
I have written the code as
public class MainActivity extends DeviceAdminReceiver{
public void makeTest()
{
System.out.println("Entered Main Class");
}
public class Controller extends Activity {
static final int RESULT_ENABLE = 1;
Button powerOff;
int amountOfTime =20*1000;
Context context = this;
DevicePolicyManager mDPM;
ActivityManag
I have made a program of simple alert box in android.now i have to put two buttons "OK" and "cancel" but when i run the program it only shows ,the "cancel" button...my code is as below:
Main.java
public class MainActivity extends Activity {
Button btn;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout
I want to turn the android screen on button click,Now i had written a program for this in is not showing any errors also its not working..
The code for this is..
public class MainActivity extends Activity {
Button powerOff;
int amountOfTime =20*1000;
Context context = this;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(
I have a button that links to another activity, when I click on it it goes to the layout.xml I want it to
This is the java file for the main/first screen
Button button;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
addListenerOnButton();
}
public void addListenerOnButton() {
final Context context
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