長時間過去了。但可能會幫助別人。 如果你想直接打電話,你應該使用requestPermissions方法。
此行添加到您的清單文件:
<uses-permission android:name="android.permission.CALL_PHONE" />
2.定義在活動類的類變量:
private static Intent phoneCallIntent; //If use don't need a member variable is good to use a static variable for memory performance.
添加這些行到onCreate活動方法:
final String permissionToCall = Manifest.permission.CALL_PHONE;
//Assume that you have a phone icon.
(findViewById(R.id.menuBarPhone)).setOnClickListener(new OnClickListener(){
public void onClick(View view) {
phoneCallIntent = new Intent(Intent.ACTION_CALL);
phoneCallIntent.setData(Uri.parse(getString(R.string.callNumber))); //Uri.parse("tel:your number")
if (ActivityCompat.checkSelfPermission(MainFrame.this, permissionToCall) != PackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions(MainFrame.this, new String[]{permissionToCall}, 1);
return;
}
startActivity(phoneCallIntent);
}
});
4。而對於點擊之後打電話立即允許按鈕,覆蓋onRequestPermissionsResult方法:
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults){
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
if(requestCode == 1){
final int permissionsLength = permissions.length;
for (int i = 0; i < permissionsLength; i++) {
if(grantResults[i] == PackageManager.PERMISSION_GRANTED){
startActivity(phoneCallIntent);
}
}
}
當用戶賦予的權限,下一次就不會有對話框和呼叫將被直接作出。
我懷疑它可能與'100'不是美國電話系統上的有效電話號碼有關。 (這可能是一個bug) – geoffspear