使用Action，Data属性启动系统Activity
最后更新于：2022-04-01 16:14:56
几个Action属性和Data属性的特殊组合：
ACTION_VIEW content：//com.android.contacts/contacts/1：显示标识为1的联系人的信息
ACTION_EDIT content：//com.android.contacts/contacts/1：编辑标识为1的联系人的信息
ACTION_DIAL content：//com.android.contacts/contacts/1：显示向标识为1的联系人拨号的界面
ACTION_VIEW tel：123：显示向指定号码123拨号的界面
ACTION_DIAL tel：123：显示向指定号码123拨号的界面
ACTION_VIEW content：//contacts/people/：显示所有联系人列表的信息，通过这种组合可以方便地查看系统联系人
MainActivity.java
~~~
package com.hust.actiondataonsystemactivity;
import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button brower=(Button) findViewById(R.id.button1);
Button edit=(Button) findViewById(R.id.button2);
Button call=(Button) findViewById(R.id.button3);
//浏览网页
brower.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent =new Intent();
intent.setAction(Intent.ACTION_VIEW);
intent.setData(Uri.parse("http://www.baidu.com"));
startActivity(intent);
}
});
//编辑联系人页面
edit.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent =new Intent();
intent.setAction(Intent.ACTION_EDIT);
intent.setData(Uri.parse("content://com.android.contacts/contacts/2"));
startActivity(intent);
}
});
//拨号页面
call.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent =new Intent();
intent.setAction(Intent.ACTION_DIAL);
intent.setData(Uri.parse("tel:02780108225"));
startActivity(intent);
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
~~~
