Android中button的onClick事件幾種方法
利用三種方法，學習button的監聽事件。
方法一源碼如下：
package com.example.androidtest; import android.os.Bundle; import android.app.Activity; import android.content.Intent; import android.view.Menu; import android.widget.Button; import android.widget.EditText; import android.widget.Toast; import android.view.View; import android.widget.TextView; import android.view.View.OnClickListener; import android.widget.Button; //import android.text.Editable; //import android.text.TextWatcher; import android.widget.EditText; public class MainActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Button button1 = (Button)findViewById(R.id.button1); Button button2 = (Button)findViewById(R.id.button2); //方法一： //增加事件響應 button1.setOnClickListener(new Button.OnClickListener() { public void onClick(View v) { Intent intent =new Intent(); intent.setClass(MainActivity.this, TestActivity.class); MainActivity.this.startActivity(intent); } }); button2.setOnClickListener(new Button.OnClickListener() { public void onClick(View v) { Intent intent =new Intent(); intent.setClass(MainActivity.this, TActivity.class); MainActivity.this.startActivity(intent); } }); } 方法二：
package com.example.androidtest; import android.os.Bundle; import android.app.Activity; import android.content.Intent; import android.view.Menu; import android.widget.Button; import android.widget.EditText; import android.widget.Toast; import android.view.View; import android.widget.TextView; import android.view.View.OnClickListener; import android.widget.Button; //import android.text.Editable; //import android.text.TextWatcher; import android.widget.EditText; public class MainActivity extends Activity { @Override { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Button button1 = (Button)findViewById(R.id.button1); Button button2 = (Button)findViewById(R.id.button2); } //方法二： public void myClickHandler(View target){ switch (target.getId()) { case R.id.button1: Intent music=new Intent(); music.setClass(MainActivity.this, TestActivity.class); MainActivity.this.startActivity(music); // setTitle("myClickHandler01"); break; case R.id.button2: // setTitle("myClickHandler02"); Intent moive=new Intent(); moive.setClass(MainActivity.this, TActivity.class); MainActivity.this.startActivity(moive); break; } } } 方法三：
package com.example.androidtest; import android.os.Bundle; import android.app.Activity; import android.content.Intent; import android.view.Menu; import android.widget.Button; import android.widget.EditText; import android.widget.Toast; import android.view.View; import android.widget.TextView; import android.view.View.OnClickListener; import android.widget.Button; //import android.text.Editable; //import android.text.TextWatcher; import android.widget.EditText; public class MainActivity extends Activity { protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); } //方法三： public void myClickHandler01(View target){ //設置activity的頭標題 // setTitle("myClickHandler01"); Intent music=new Intent(); music.setClass(MainActivity.this, TestActivity.class); MainActivity.this.startActivity(music); } public void myClickHandler02(View target){ //設置activity的頭標題 // setTitle("myClickHandler02"); Intent moive=new Intent(); moive.setClass(MainActivity.this, TActivity.class); MainActivity.this.startActivity(moive); } } 如有疑問請留言或者到本站社區交流討論，感謝閱讀，希望能幫助到大家，謝謝大家對本站的支持！
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