package org.dreamtech.helloworld; import android.net.Uri; import android.os.Bundle; import android.app.Activity; import android.content.Intent; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.EditText; import android.widget.Toast; public class MainActivity extends Activity { private EditText et_number; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); et_number = (EditText) findViewById(R.id.editText1); Button btn_call = (Button) findViewById(R.id.button1); btn_call.setOnClickListener(new MyClickListener()); } private class MyClickListener implements OnClickListener{ @Override public void onClick(View v) { //get String number = et_number.getText().toString().trim(); if("".equals(number)){ Toast.makeText(MainActivity.this, "不能为空", Toast.LENGTH_LONG).show(); return; } Intent intent = new Intent(); intent.setAction(Intent.ACTION_CALL); intent.setData(Uri.parse("tel:"+number)); startActivity(intent); } } }
注意设置权限:
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