Android AlertDialog的简单实用

AlertDialog.Builder builder= new AlertDialog.Builder(DialogTestActivity.this);
builder.setTitle("title");
builder.setMessage("this is message ");
builder.setPositiveButton("button1", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
setTitle("click button1");
Toast.makeText(getApplication(),"click button1",Toast.LENGTH_LONG).show();
}
});

builder.setNeutralButton("button2", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
setTitle("click button2");
}
});
builder.setNegativeButton("button3", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
setTitle("click button3");
}
});
builder.show();
}
});

第二种一般格式代码块：

	button2.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View view) {new AlertDialog.Builder(DialogTestActivity.this).setTitle("point out").setMessage("jump to mainActivity").setPositiveButton( "sure" ,new DialogInterface.OnClickListener() {public void onClick(DialogInterface dialoginterface, int i){Intent intent =new Intent(DialogTestActivity.this, MainActivity.class);startActivity(intent);}}).setNegativeButton("cancle",null).show();}});