在我的应用程序中有一个活动说活动A，其中包含带有一些文本视图的图像视图。代码列在下面
public class EidCardFinal extends Activity {
private ImageView imageView;
private TextView receiver, sender, messagebody;
private Intent intent;
private Bundle bundle;
private static final int FONT_SELECT = 1;
// public String filepath = "MyFileStorage";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_eid_card_final);
intent = getIntent();
String message1 = intent.getStringExtra("RECEIVER");
String message2 = intent.getStringExtra("SENDER");
String message3 = intent.getStringExtra("MESSAGEBODY");
String check_click = intent.getStringExtra("bttnclick");
imageView = (ImageView) findViewById(R.id.imageView1);
receiver = (TextView) findViewById(R.id.textView1);
sender = (TextView) findViewById(R.id.textView2);
messagebody = (TextView) findViewById(R.id.textView3);
receiver.setText(message1);
sender.setText(message2);
messagebody.setText(message3);
// Selected image id
if ("BUTTONCLICK".equals(check_click)) {
String path = intent.getStringExtra("image");
Uri myUri = Uri.parse(path);
imageView.setImageURI(myUri);
} else {
int position = intent.getExtras().getInt("id");
ImageAdapter imageAdapter = new ImageAdapter(this);
// ImageView imageView = (ImageView) findViewById(R.id.imageView1);
imageView.setImageResource(imageAdapter.thumbIds[position]);
case R.id.change_fonts:
Intent fontintent = new Intent();
bundle = getIntent().getExtras();
fontintent.putExtras(bundle);
fontintent.setClass(getApplicationContext(), FontSelection.class);
this.startActivityForResult(fontintent, FONT_SELECT);
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// TODO Auto-generated method stub
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == RESULT_OK) {
if (requestCode == FONT_SELECT) {
Bundle pathadd= data.getExtras();
String fontadd = pathadd.getString("FONTPATH");
//intent = getIntent();
/*String message1 = data.getStringExtra("RECEIVER");
String message2 = data.getStringExtra("SENDER");
String message3 = data.getStringExtra("MESSAGEBODY");
//String check_click = intent.getStringExtra("bttnclick");
imageView = (ImageView) findViewById(R.id.imageView1);
receiver = (TextView) findViewById(R.id.textView1);
sender = (TextView) findViewById(R.id.textView2);
messagebody = (TextView) findViewById(R.id.textView3);
receiver.setText(message1);
sender.setText(message2);
messagebody.setText(message3);*/
//bundle = getIntent().getExtras();
Typeface tyfa = Typeface.createFromAsset(getAssets(), fontadd);
receiver.setTypeface(tyfa);
sender.setTypeface(tyfa);
messagebody.setTypeface(tyfa);
s
}
}
}
从菜单中，用户将被带到另一个活动，例如活动B，其中可以为活动A选择自定义字体。代码列在下面
public class FontSelection extends Activity {
String[] fontpath = { "fonts/android_7.ttf", "fonts/doridrobot.ttf",
"fonts/droidsansmono.ttf", "fonts/droidserif-bold.ttf",
"fonts/green-avocado.ttf", "fonts/lokicola.ttf",
"fonts/outwrite.ttf", "fonts/painting-the-light.ttf",
"fonts/roboto-black.ttf", "fonts/roboto-boldcondensed.ttf",
"fonts/roboto-medium.ttf", "fonts/roboto-regular.ttf" };
String[] fontname = { "android_7", "doridrobot", "droidsansmono",
"droidserif-bold", "green-avocado", "lokicola", "outwrite",
"painting-the-light", "roboto-black", "roboto-boldcondensed",
"roboto-medium", "roboto-regular" };
private Intent fontpathintent = new Intent();
private Bundle bundle1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_font_selection);
RadioButton radio1 = (RadioButton) findViewById(R.id.radioButton1);
Typeface tf1 = Typeface.createFromAsset(getAssets(), fontpath[0]);
radio1.setTypeface(tf1);
radio1.setText(fontname[0]);
RadioButton radio2 = (RadioButton) findViewById(R.id.radioButton2);
Typeface tf2 = Typeface.createFromAsset(getAssets(), fontpath[1]);
radio2.setTypeface(tf2);
radio2.setText(fontname[1]);
RadioButton radio3 = (RadioButton) findViewById(R.id.radioButton3);
Typeface tf3 = Typeface.createFromAsset(getAssets(), fontpath[2]);
radio3.setTypeface(tf3);
radio3.setText(fontname[2]);
RadioButton radio4 = (RadioButton) findViewById(R.id.radioButton4);
Typeface tf4 = Typeface.createFromAsset(getAssets(), fontpath[3]);
radio4.setTypeface(tf4);
radio4.setText(fontname[3]);
RadioButton radio5 = (RadioButton) findViewById(R.id.radioButton5);
Typeface tf5 = Typeface.createFromAsset(getAssets(), fontpath[4]);
radio5.setTypeface(tf5);
radio5.setText(fontname[4]);
RadioButton radio6 = (RadioButton) findViewById(R.id.radioButton6);
Typeface tf6 = Typeface.createFromAsset(getAssets(), fontpath[5]);
radio6.setTypeface(tf6);
radio6.setText(fontname[5]);
RadioButton radio7 = (RadioButton) findViewById(R.id.radioButton7);
Typeface tf7 = Typeface.createFromAsset(getAssets(), fontpath[6]);
radio7.setTypeface(tf7);
radio7.setText(fontname[6]);
RadioButton radio8 = (RadioButton) findViewById(R.id.radioButton8);
Typeface tf8 = Typeface.createFromAsset(getAssets(), fontpath[7]);
radio8.setTypeface(tf8);
radio8.setText(fontname[7]);
RadioButton radio9 = (RadioButton) findViewById(R.id.radioButton9);
Typeface tf9 = Typeface.createFromAsset(getAssets(), fontpath[8]);
radio9.setTypeface(tf9);
radio9.setText(fontname[8]);
RadioButton radio10 = (RadioButton) findViewById(R.id.radioButton10);
Typeface tf10 = Typeface.createFromAsset(getAssets(), fontpath[9]);
radio10.setTypeface(tf10);
radio10.setText(fontname[9]);
RadioButton radio11 = (RadioButton) findViewById(R.id.radioButton11);
Typeface tf11 = Typeface.createFromAsset(getAssets(), fontpath[10]);
radio11.setTypeface(tf11);
radio11.setText(fontname[10]);
RadioButton radio12 = (RadioButton) findViewById(R.id.radioButton12);
Typeface tf12 = Typeface.createFromAsset(getAssets(), fontpath[11]);
radio12.setTypeface(tf12);
radio12.setText(fontname[11]);
}
public void onRadioButtonClick(View view) {
bundle1 = getIntent().getExtras();
// Is the button now checked?
boolean checked = ((RadioButton) view).isChecked();
// Check which radio button was clicked
switch (view.getId()) {
case R.id.radioButton1:
if (checked)
fontpathintent.putExtra("FONTPATH", fontpath[0]);
fontpathintent.setClass(getApplicationContext(),EidCardFinal.class);
fontpathintent.putExtras(bundle1);
startActivity(fontpathintent);
break;
case R.id.radioButton2:
if (checked)
fontpathintent.putExtra("FONTPATH", fontpath[1]);
fontpathintent.putExtras(bundle1);
fontpathintent.setClass(getApplicationContext(),EidCardFinal.class);
startActivity(fontpathintent);
break;
case R.id.radioButton3:
if (checked)
fontpathintent.putExtra("FONTPATH", fontpath[2]);
fontpathintent.putExtras(bundle1);
fontpathintent.setClass(getApplicationContext(),EidCardFinal.class);
startActivity(fontpathintent);
break;
case R.id.radioButton4:
if (checked)
fontpathintent.putExtra("FONTPATH", fontpath[3]);
fontpathintent.putExtras(bundle1);
fontpathintent.setClass(getApplicationContext(),EidCardFinal.class);
startActivity(fontpathintent);
break;
case R.id.radioButton5:
if (checked)
fontpathintent.putExtra("FONTPATH", fontpath[4]);
fontpathintent.putExtras(bundle1);
fontpathintent.setClass(getApplicationContext(),EidCardFinal.class);
startActivity(fontpathintent);
break;
case R.id.radioButton6:
if (checked)
fontpathintent.putExtra("FONTPATH", fontpath[5]);
fontpathintent.putExtras(bundle1);
fontpathintent.setClass(getApplicationContext(),EidCardFinal.class);
startActivity(fontpathintent);
break;
case R.id.radioButton7:
if (checked)
fontpathintent.putExtra("FONTPATH", fontpath[6]);
fontpathintent.putExtras(bundle1);
fontpathintent.setClass(getApplicationContext(),EidCardFinal.class);
startActivity(fontpathintent);
break;
case R.id.radioButton8:
if (checked)
fontpathintent.putExtra("FONTPATH", fontpath[7]);
fontpathintent.putExtras(bundle1);
fontpathintent.setClass(getApplicationContext(),EidCardFinal.class);
startActivity(fontpathintent);
break;
case R.id.radioButton9:
if (checked)
fontpathintent.putExtra("FONTPATH", fontpath[8]);
fontpathintent.putExtras(bundle1);
fontpathintent.setClass(getApplicationContext(),EidCardFinal.class);
startActivity(fontpathintent);
break;
case R.id.radioButton10:
if (checked)
fontpathintent.putExtra("FONTPATH", fontpath[9]);
fontpathintent.putExtras(bundle1);
fontpathintent.setClass(getApplicationContext(),EidCardFinal.class);
break;
case R.id.radioButton11:
if (checked)
fontpathintent.putExtra("FONTPATH", fontpath[10]);
fontpathintent.putExtras(bundle1);
fontpathintent.setClass(getApplicationContext(),EidCardFinal.class);
startActivity(fontpathintent);
break;
case R.id.radioButton12:
if (checked)
fontpathintent.putExtra("FONTPATH", fontpath[11]);
fontpathintent.putExtras(bundle1);
fontpathintent.setClass(getApplicationContext(),EidCardFinal.class);
startActivity(fontpathintent);
break;
}
}
我的问题是，在选择字体后，活动A没有变化，我的意思是活动A中的字体保持不变。
更改了代码，但仍然没有运气
case R.id.radioButton1:
if (checked)
fontpathintent.putExtra("FONTPATH", fontpath[0]);
// fontpathintent.setClass(getApplicationContext(),EidCardFinal.class);
// fontpathintent.putExtras(bundle1);
// startActivity(fontpathintent);
setResult(1, fontpathintent);
finish();
break;
case R.id.radioButton2:
if (checked)
fontpathintent.putExtra("FONTPATH", fontpath[1]);
// fontpathintent.setClass(getApplicationContext(),EidCardFinal.class);
// fontpathintent.putExtras(bundle1);
// startActivity(fontpathintent);
setResult(1, fontpathintent);
finish();
break;
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// TODO Auto-generated method stub
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == RESULT_OK) {
if (requestCode == 1) {
// Bundle pathadd= data.getExtras();
String customfont = data.getStringExtra("FONTPATH");
// String fontadd = pathadd.getString("FONTPATH");
// intent = getIntent();
/*
* String message1 = data.getStringExtra("RECEIVER"); String
* message2 = data.getStringExtra("SENDER"); String message3 =
* data.getStringExtra("MESSAGEBODY"); //String check_click =
* intent.getStringExtra("bttnclick"); imageView = (ImageView)
* findViewById(R.id.imageView1); receiver = (TextView)
* findViewById(R.id.textView1); sender = (TextView)
* findViewById(R.id.textView2); messagebody = (TextView)
* findViewById(R.id.textView3); receiver.setText(message1);
* sender.setText(message2); messagebody.setText(message3);
*/
// bundle = getIntent().getExtras();
Typeface tyfa = Typeface.createFromAsset(getAssets(),
customfont);
receiver.setTypeface(tyfa);
sender.setTypeface(tyfa);
messagebody.setTypeface(tyfa);
}
我认为在调用onActivityResult（）时存在一些问题，因为我已尝试过下面的代码行，但也没有结果。任何人都可以建议出现问题吗？
tyfa = Typeface.createFromAsset(getAssets(),
"fonts/outwrite.ttf");
答案 0 :(得分：0)
使用另一个字段并为每个项目提供唯一ID然后使用getextra和putextra方法可能会有所帮助
答案 1 :(得分：0)
您不应该再次启动第一个活动，而应该设置secont活动的结果并关闭它。然后，第一个活动将使用onActivityResult方法获得结果。
这是example如何运作
答案 2 :(得分：0)
问题解决了。实际上我在setResult（）中使用requestCode而不是resultcode，这就是罪魁祸首。