AndroidManifest.xml:
main.xml:
PhoneActivity:import android.app.Activity;import android.content.Intent;import android.net.Uri;import android.os.Bundle;import android.view.View;import android.widget.Button;import android.widget.EditText;public class PhoneActivity extends Activity { // 文本框 private EditText mobileText; //按钮 private Button button; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); // 获取文本框 mobileText = (EditText) this.findViewById(R.id.mobile); //获取按钮 button = (Button)this.findViewById(R.id.button); //添加单击事件 button.setOnClickListener(new View.OnClickListener(){ public void onClick(View v) { //获取电话号码 String mobile = mobileText.getText().toString(); //意图对象 1.意图的动作用指明交给的那一个应用 2.传输数据 Intent intent = new Intent(Intent.ACTION_CALL,Uri.parse('tel:'+mobile)); //把意图传播给操作系统 PhoneActivity.this.startActivity(intent); } }); }}