Android 数据传递-通过静态变量传递数据
使用Intent可以很方便在不同的Activity之间传递数据,这个也是官方推荐的方式,但是也有一定的局限性,就是Intent无法传递不能序列化的对象,例如(图片)。我们可以使用静态变量来解决这个问题
Ø案例一
package com.android.myintent;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
public class Main extends Activity {
/** Called when the activity is first created. */
private Button button;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
button = (Button) this.findViewById(R.id.button);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
// 声明一个意图
Intent intent = new Intent();
intent.setClass(Main.this, OtherActivity.class);
OtherActivity.age = 23;
OtherActivity.name = "jack";
startActivity(intent);
}
});
}
}package com.android.myintent;
import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;
public class OtherActivity extends Activity {
private TextView textView;
public static String name;
public static int age;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.other);
textView = (TextView)this.findViewById(R.id.msg);
textView.setText("-name->>"+name+"\n"+"-age-->>"+age);
}
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