Using multiple button to start different activities Android

Question

I have 3 activities. Main activity which is the home screen with two buttons, each button should show up one of the 2 last activity. I tried many methods for multiple buttons both in intent mode and switch mode; but I still can have two working button. The first button starts its linked activity without any problem, but the second button still won't show up. Here is the java code:

package com.live.app; import android.app.Activity; import android.content.Context; import android.content.Intent; import android.os.Bundle; import android.widget.Button; import android.view.View; import android.view.View.OnClickListener; public class MainActivity extends Activity { Button button; Button button01; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); addListenerOnButton(); } public void addListenerOnButton() { final Context context = this; button = (Button) findViewById(R.id.buttonUrl); button.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { Intent intent = new Intent(context, WoneWideo.class); startActivity(intent); } }); } public void addListenerOnButton2() { final Context context = this; button01 = (Button) findViewById(R.id.button01); button01.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { Intent intent = new Intent(context, WebViewActivity.class); startActivity(intent); } }); } }

The main layout file content:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" .......................... .............................. <Button android:id="@+id/buttonUrl" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="@string/live_button" android:onClick="onClick"/> <Button android:id="@+id/button01" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="@string/vod_button" android:onClick="onClick"/> </LinearLayout>

Also I have all these activities/class declared in the Manifest file.

Subramanian Ramsundaram · Accepted Answer · 2013-12-04 18:21:07Z

You forget to call addListenerOnButton2(). Anyhow You can make your code simple

Try This:

 Button btn1,btn2; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); btn1 = (Button)findViewById(R.id.buttonUrl); btn2 = (Button)findViewById(R.id.button01); } public void onClick(View v){ if(v.getId() == R.id.buttonUrl){ Intent intent = new Intent(context, WoneWideo.class); startActivity(intent); }else if(v.getId() == R.id.button01){ Intent intent = new Intent(context, WebViewActivity.class); startActivity(intent); } }

Thanks it works. But I changed context into getBaseContext to get it work.

Nizam · Accepted Answer · 2013-12-04 18:36:25Z

When there is a property android:onClick="onClick" in your xml, then there is no need for setting listeners. Only thing you need is, a function with signature public void onClick(View v){}

So, the Activity will be as:

public class MainActivity extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); } public void onClick(View v){ switch(v.getId()){ case R.id.buttonUrl: Intent intent = new Intent(context, WoneWideo.class); startActivity(intent); break; case R.id.button01: Intent intent = new Intent(context, WebViewActivity.class); startActivity(intent); break; } }

Thanks Nizam. It simply the code. I chann*ged this line to get it work : intent = new Intent(getBaseContext(), WebViewActivity.class);
You are welcome. That was a mistake while copy-paste. Actually it was Intent intent = new Intent(MainActivity.this, WebViewActivity.class);

David Arenburg · Accepted Answer · 2016-03-29 12:36:52Z

0

You did not call addListenerOnButton2() in onCreate(). You only called addListenerOnButton()

edited Mar 29, 2016 at 12:36

David Arenburg

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answered Dec 4, 2013 at 18:00

Siu

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Using multiple button to start different activities Android

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